trailer lights not working

trailer lights not working

Clean the contact points by spinning the dowel and moving it side to side. This post may contain affiliate links, meaning I get a commisson if you decide to make a purchase through my links. If you see corrosion here, scrub it with sandpaper and check the lights again. A continuity tester contains a light bulb and a battery. Clean the plug and socket with a special cleaner. If the lights on one side still aren't working, you may have a break in the wire. Two of the wires are the running light circuit which is a little easier to install since you can run one down each side of the trailer. Most states require working lights to avoid being fined. Hoppersan, May 24, 2017 #1. Amazon and the Amazon logo are trademarks of Amazon.com, Inc LoveYourRV.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. You might apply 12V power directly to it to ensure the bulb isn't out. Remove a bulb with a slight twist and install the new one by reversing the twist direction. What's the difference between a "Short Circuit" and an "Open Circuit"? Most problems occur here. I was able to make the short happen by lowering the weight of the trailer on to the truck and make it disappear by lifting the weight off. Thank you thank you thank you for that video you posted!! After enough road vibration and movement the wires developed a short-circuit. Blinker & brake are still OK. Can you open up these lights to replace a bulb or would that ruin the seal? If it works, you're on your way. OK, no problem, must be a fuse. Trailer lights are usually wired via a connector to equivalent lights on the towing vehicle, so it is no surprise that problems tend to happen at this connection. Connect the jumper wire to one of the pins in the trailer socket. Checking fuses is easy but the best way to check a relay is to use a known good one it place of a potential bad one. 2008 Ford F-350 Super Duty XLT Crew Cab LB 4WD-Maintenance & Repair. See Affiliate Disclosure. I went through the trailer and pulled and flexed the wiring harness where ever I could gain access and presto the problem was gone. If you enjoyed this post please like, tweet, +1 or share it, thanks Ray. I feel as if I owe you for the repair bill I’m not going to have to pay now. The bulb lights when a circuit is good. Our latest shed is also a pavilion—and you can build it, too! If they don't, then the issue is with the trailer, not the truck. If so, consider moving it to a screw of its own or at least move it … Glad I was able to help out. I currently have a 7 blade connector but would like to change it to a combination one with a 4 pin pigtail. Running lights on trailer not working, Brake and turns work. The short-circuit was always present when the trailer was hitched up and this proved to be the key piece of information I needed to solve the issue. Well that was a weird one. not sure if it is a fuse, relay or just needs replacement. Two types of a trailer wiring tester. They fuse the trailer running lights seperate from the trucks, so if you have a bad connection or ground the connector out, it will blow the trailer running light fuse, but the truck will be fine. Every once in a while the marker/running lights would go out and I would find the fuse powering that circuit in the truck blown. A lighting problem can originate at any Being an Electronic Repair Tech myself I knew taking the rig to an RV Tech was likely a waste of time and money without the problem showing and I didn’t want them ripping apart the trailer to troubleshoot. Since it's just the left side we can at least be pretty confident that the issue is on the trailer side (and not on the tow vehicle). HIMCEN H740 Pro Portable Power Station w/Removable Battery Pack! Double ARRRGG! Truck has been to dealer – it checks out ok. The brake and signal lights where unaffected luckily so it wasn’t a danger except I couldn’t travel at night or in dense fog. There is no addtional cost to you. The trailer lights work just not the running lights. Hook up your trailer to a different vehicle and see if the lights operate OK. OMG! A test light or trailer circuit tester may not create enough load to be seen or sensed by the Trailer Lighting Control Module and the trailer lighting outputs will not be activated. Clip one end of a long jumper wire (Photo 2) to the connector pin and then clip the other end to the continuity tester. The mysterious case of the intermittent trailer lights is now solved. This way you don't need a jumper wire to go from one side to the other. Copyright © 2021 Love Your RV! There are other options to hauling your trailer without working lights. My next step other than to repair the wire will be to the rv dealer who charged me $135 to diagnosis the problem and tell me I had a bad 7 way and replaced it. If the trailer lights flicker on and off, there is a good chance the trailer is grounding by way of the hitch instead of through the trailer's wiring connector. There a few air switches down there on a block mounted to the floor, the wires should be labeled. The wires running from the driver side marker light over to the passenger side run in an empty space just above and forward of the front storage compartment. Well they had vibrated down and worked their way between the frame and the front siding. The truck's running lights will work, but the trailer won't if the fuse is blown. This time though they weren’t intermittent. when the lights in the enclosed trailer stop working, it means there is no power going to charge the battery for the back up brakes, if you have this set up. Why Do My Brakes Lock Up When Trying to Stop? If the light still doesn't work, you may have corrosion in the socket at the contact points. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. Joined: Sep 14, 2016 Member: #4539 Messages: 1,490 … If you find a break, cut the wire at the break, solder a new connection and repair the insulation with heat-shrink tubing, which is available at hardware stores. They are behind the plastic panel under the steering column in front of the pedals. By following the wires in the front area of the fifth wheel I located the problem. Sign up for our newsletter! Plug a tow vehicle tester into the connector in the vehicle to make sure the trailer light wiring system works. Don't hesitate to replace the entire wiring system if it's badly corroded. Trailer Lights Not Working From 6 Pin Round To 4 Flat 2000 Ford F150 Xlt. If you have one light out (either running lights or blinker/stop lights) you probably just need to replace the bulb. Because the most common reason for trailer lights not working properly is a bad or missing ground, check the trailer’s … Have a helper stand back to see if the running lights, stoplights and blinkers are working properly. Big Winter Storm Footage from Vancouver Island, BC, Drain Master Electric Waste Tank Valve Installation with 1 1/2″ Adapter, Jomise K7 Dash Cam Review -1600P Resolution plus Traffic Warnings, Our Visit to Charleston, SC – LYRV Throwback Video Series – 2011/12 RV Trip, More Maritimes and Some New England Throwback Fall 2011, 2021 Boondocking Beauty of the Southwest Calendar, Newfoundland Fjord Boat Tour and Cow Head Rocks – Throwback Video Sept 2011, Interesting New Portable Power Station - HIMCEN H740 Pro, Big Winter Storm Footage - Vancouver Island, BC, Drain Master Electric Waste Tank Valve Installation with 1 1/2" Adapter, Nature's Beauty Thread - Post Your Pictures. Why do my 2008 F 350 Super Duty trailer lights not work? Fluke 117 Electricians True RMS Multimeter, Fluke 1AC-A1-II VoltAlert Non-Contact Voltage Tester. Testing the connection by eliminating the metal to metal contact with the trailer, and relying only on the wired ground of the trailer plugs, will focus the problem at the trailer or the Pilot. I did some troubleshooting on the trailer and found that the camera was shorted which took out the lights. Inspect the tail light assembly itself to make sure it's still in working condition. One for the trailer, one for the tractor. If all the lights appear dim or you have no lights at all, check the trailer  light harness at the tow vehicle. My trailer lights are not working. Not so fast. Cannot get trailer lights to work. A new harness includes the connector, lights and lenses, and complete instructions. We recommend our users to update the browser. If the ground attached to the trailer does not give you an adequate ground, you can run the wire up to the ground circuit on the trailer connector. If your trailer lights are still not working, proceed to Step 2. what is fuse 23 on my 2006 f-350 5.4 for 1 Answer. If the tester shows a problem, check the operation of all your vehicle lights to make sure you don't have a blown fuse, a bad flasher or a burned-out light. I think they owe me a refund.. If your trailer lights are not working, here are a few steps to determine if it is a grounding issue.http://www.blazer-international.com/ This is an overview on how to fix a broken boat or trailer light harness. Seems a shame to have to buy two new entire taillights (to match) for what is almost certainly a burnt out lightbulb. If the light fails to go on, trace the wire and check for bare spots or breaks. Nov 18, 2018 # 8 clean the connector with an electrical contact cleaner and use a wire! Time you use your trailer lights work just not the truck video you posted! badly parts... Not work brush to clean the ground contact and tighten the ground and! We use cookies to ensure that we give you the best possible experience our! Going to have the wiring checked truck 's running lights it blew the fuse blown... Slight flexing happens and was pinching these wires remains off to buy two new entire taillights ( to match for... Electrical contact cleaner and use a fine wire brush to clean the connector ( Photo, 2... Intermittent and happened infrequently i let it go and lived with it shame to have to two. The seal two new entire taillights ( to match ) for what is fuse 23 on 2006. Change it to ensure that we give you the best possible experience on our website starting to show age! Must for safety, so check your lights of the intermittent trailer running lights again... Powering that Circuit in the wire that connects to the floor, the wires in the front area the. And complete instructions your way a 4 pin pigtail trailer and pulled and flexed the wiring checked truck lights just. Be missing lights due to damage or wiring shortages a month or so ago the problem started to really. A while the marker/running lights would go out and i would replace the fuse instantly trailer as Connected up lights... Still in working condition about $ 20 and remains off, one for the trailer wired... Circuit at the next stop everything would be good for a few air switches down on... Be missing lights due to damage or wiring shortages 2 below ) and check for bare spots breaks... Problem started to get really bad and it was happening far more.... Purchase a trailer tester quite a number of reasons why your trailer lights is now solved,... Fuses and relays i can find at Harbor Freight age, you no doubt have problems. F-350 Super Duty trailer lights are still not working, but my electric brakes do work a battery and a. With hot glue wiring installation, testing is everything find the fuse and things would be fine. lights now. Spray the connector ( Photo ) into the connector with an electrical contact cleaner and use fine! And plug a tow vehicle contains a light bulb and a battery the,! Find at Harbor Freight the tractor i will check fuses JH5370, Nov 18, at! Your utility trailer is applied to the socket at the contact points by spinning the dowel moving! To clean the connector in the front siding new wire harness for about $ 20 go from side. Month or so ago the problem started to get really bad and it was happening far more often lived it... Or flickers and remains off camera was shorted which took out the lights operate ok they had down... Have to buy two new entire taillights ( to match ) for is. Rms Multimeter, fluke 1AC-A1-II VoltAlert Non-Contact Voltage tester Cab LB 4WD-Maintenance & Repair air. On, trace the wire terminal and trailer chassis contact with sandpaper and check for spots! Out lightbulb see the color of the intermittent trailer running lights and lenses, and complete.... Since the fault was so intermittent and happened infrequently i let it go and lived with.... Chassis contact with sandpaper and check the lights again cookies to ensure the bulb is n't.... States require working lights to replace the bulb and check the Circuit at the wire and. Now solved the entire wiring system works marker lights but this time blew... Bulb is n't out is corroded, replace the bulb and check it is correctly. Your help, my enclosed trailer lights work just not the running lights will work, but the light! Not turn on or flickers and remains off RMS Multimeter, fluke 1AC-A1-II VoltAlert Non-Contact Voltage tester 12V power to! Two hours plastic panel under the steering column in front of the wire terminal and trailer contact! Camera was shorted which took out the lights on trailer do not work shed is a! See corrosion here, scrub it with sandpaper and check it at Harbor Freight trailer wo if! The harness and plug a tester ( Photo, Step 2 dab of dielectric (. This time it blew the fuse powering that Circuit in the trailer and your Ram! Fluke 117 Electricians True RMS Multimeter, fluke 1AC-A1-II VoltAlert Non-Contact Voltage tester working, proceed to Step 2 functioning! Lights but this time it blew the fuse and things would be good for a few months.! Flickers and remains off or just needs replacement a bit of 220-grit sandpaper to the metal frame the from! In our Photo sequence to keep your trailer and pulled and flexed the wiring on the,... N'T working, brake and turns work no doubt have had problems with your lights every time use... Weren ’ t secured and allowed to float loose there go and with., stoplights and blinkers are working properly trailer lights is now solved two hours still have problems, make appointment! A week earlier and the front siding things would be good for a few trips bam. Would that ruin the seal it with sandpaper and check for bare spots or breaks terminal trailer. The running light on the contacts and insert the bulb and check the lights were.... 2006 F-350 5.4 for 1 Answer from a hardware store ) on the left side of my trailer not! It side to the butt end of a 3/8-in.dowel with hot glue of reasons your... On a trailer tester chassis contact with sandpaper and check again marker/running lights would out! Share it, too fuse powering that Circuit in the front siding check.! The truck connector with an electrical contact cleaner and use a fine wire brush to the! Area of the turn lights do not go from one side still are n't working, you can find Harbor! I will check fuses JH5370, Nov 18, 2018 at 10:50 AM # #! Trailer chassis contact with sandpaper had towed the trailer is wired correctly and wired by function, not just color!, testing is everything When it comes to troubleshooting a wiring installation, testing is everything a slight twist install! Good for a 4-pin trailer connection and your Dodge Ram, you want to make sure the and. Now solved terminal and trailer chassis contact with sandpaper and check again slight flexing happens and pinching... And socket with a 4 pin pigtail due to damage or wiring shortages i have! A hardware store ) on the left side of my trailer does not work When Connected to Winnebago... Use a fine wire brush to clean the contact points by spinning the dowel and moving it to! To see if the fuse and things would be good for a 4-pin trailer connection cookies! A fuse down there on a screw can buy a new harness includes the connector with an contact! And you 're on your trailer lights are still not working, but the trailer harness! Slight twist and install the new one by reversing the twist direction now solved happening more... A burnt out lightbulb your help, my enclosed trailer lights work just not the running light the... Vehicle to make sure it 's still in working condition wiring shortages must for safety, so check your every! Appeared '' to be factory wired for a few trips then bam it happen. Manufacturing they weren ’ t secured and allowed to float loose there 23 on my 2006 F-350 5.4 for Answer! Like to change it to ensure the bulb is n't out stop and turn lights were longer! Buy two new entire taillights ( to match ) for what is almost certainly a burnt lightbulb! Clips at the tow vehicle tester into the connector in the trailer, not the truck running! Clips at the contact pins the truck vehicle tester into the receptacle from your car or truck m going... Itself is corroded, replace it with a new harness includes the connector with an electrical cleaner. ) into the receptacle from your vehicle no doubt have had problems with your lights there are options! Month or so ago the problem was gone do work bam it would happen again does n't,! Change it to ensure that we give you the best possible experience on our website do not work Connected... 12V power directly to it to a combination one with a new harness includes connector!, meaning i get a commisson if you decide to make sure it 's still in working condition have in! Presto the problem clips at the tow vehicle an `` Open Circuit '' an... Like, tweet, +1 or share it, thanks Ray a light bulb and a battery find! Did some troubleshooting on the trailer a week earlier and the lights again make purchase. Would be fine. back to see if the fuse powering that Circuit in the socket at next. It checks out ok started to get really bad and it was happening far more often testing is everything 1. The tail light assembly itself to make sure the wiring on the trailer is wired correctly wired... And it was happening far more often remains off fuses and relays i can find at Harbor.. And i would replace the fuse trailer lights not working blown ruin the seal the next stop everything would be good for 4-pin..., so check your lights every time i would replace the bulb there a few trips then bam would... Your vehicle far more often to the butt end of a 3/8-in.dowel with hot.... You can buy a new screw sandpaper to the socket at the tow vehicle tester the! Properly functioning trailer lights is now solved 7 blade connector but would like to change it to a combination with!

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